{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:6IZECHAGFNRTDND7W2XCQFT4FO","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"a0fa978df961a5cbbc2063d74f13a2bbafb71fd0429715bd16f9a347b9bf756f","cross_cats_sorted":["cond-mat.mes-hall","quant-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2026-06-18T03:29:54Z","title_canon_sha256":"a1c23d50eff6a0f5212fbeb4a79dea6e3cd052fcfe3593471b9ca65578d5182f"},"schema_version":"1.0","source":{"id":"2606.19748","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.19748","created_at":"2026-06-19T16:12:34Z"},{"alias_kind":"arxiv_version","alias_value":"2606.19748v1","created_at":"2026-06-19T16:12:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.19748","created_at":"2026-06-19T16:12:34Z"},{"alias_kind":"pith_short_12","alias_value":"6IZECHAGFNRT","created_at":"2026-06-19T16:12:34Z"},{"alias_kind":"pith_short_16","alias_value":"6IZECHAGFNRTDND7","created_at":"2026-06-19T16:12:34Z"},{"alias_kind":"pith_short_8","alias_value":"6IZECHAG","created_at":"2026-06-19T16:12:34Z"}],"graph_snapshots":[{"event_id":"sha256:549a08d3406a9260841e12dceed339359b866cde474c334f7f458acc8acc720d","target":"graph","created_at":"2026-06-19T16:12:34Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2606.19748/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Strong light-matter and electron-phonon coupling generate ground states dressed by virtual bosonic excitations, making bare-state truncations and perturbative treatments unreliable in the ultrastrong-coupling regime. We introduce a nonperturbative variational ground-state framework based on a state-dependent polaron transformation, combined with a product-state ansatz and a second-order perturbative correction for residual matter-boson entanglement. We show that the optimized transformed frame becomes asymptotically decoupled at infinite coupling, because the leading linear coupling is cancele","authors_text":"Nguyen Thanh Phuc","cross_cats":["cond-mat.mes-hall","quant-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2026-06-18T03:29:54Z","title":"Variational Polaron Theory for Ground States of Strongly Coupled Light-Matter and Electron-Phonon Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.19748","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:d3145906f20a3c9043809bbf4eb67c240e4ed1f4b0998f22d4c9d7e28ff80e2d","target":"record","created_at":"2026-06-19T16:12:34Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"a0fa978df961a5cbbc2063d74f13a2bbafb71fd0429715bd16f9a347b9bf756f","cross_cats_sorted":["cond-mat.mes-hall","quant-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2026-06-18T03:29:54Z","title_canon_sha256":"a1c23d50eff6a0f5212fbeb4a79dea6e3cd052fcfe3593471b9ca65578d5182f"},"schema_version":"1.0","source":{"id":"2606.19748","kind":"arxiv","version":1}},"canonical_sha256":"f232411c062b6331b47fb6ae28167c2bbc11897566ab144e84cc0bbbfad13158","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f232411c062b6331b47fb6ae28167c2bbc11897566ab144e84cc0bbbfad13158","first_computed_at":"2026-06-19T16:12:34.018558Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-19T16:12:34.018558Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OA2il5y5Nxu0vRolYcR9/F1kdi0Vn9ci+HZHK460GOzkkGgMX1948f28/AhdHBTXa1q49bIMyEjDnijhjBMtAg==","signature_status":"signed_v1","signed_at":"2026-06-19T16:12:34.018940Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.19748","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d3145906f20a3c9043809bbf4eb67c240e4ed1f4b0998f22d4c9d7e28ff80e2d","sha256:549a08d3406a9260841e12dceed339359b866cde474c334f7f458acc8acc720d"],"state_sha256":"54d7c6b1729196bff3e23d8fe2e4a59aab01e58d704896e2f6bab134df83aa24"}